On Sep 24, 2014, at 8:33 PM, Юрий Соколов <funny.falcon@xxxxxxxxx> wrote: > Can you test with changing HASH_BIAS to zero in a src/lj_tab.h ? > It will not completely repair R=27, but still interesting to know result. I get R=22 (25% improvement). Is this zero value better for all cases or you wanted to know if I was facing a special case of high collision rate? Best, Laurent.